55308303550 has 24 divisors (see below), whose sum is σ = 107346205296. Its totient is φ = 21161437440.

The previous prime is 55308303539. The next prime is 55308303559. The reversal of 55308303550 is 5530380355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55308303559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24045939 + ... + 24048238.

It is an arithmetic number, because the mean of its divisors is an integer number (4472758554).

Almost surely, 2^55308303550 is an apocalyptic number.

55308303550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55308303550 is a deficient number, since it is larger than the sum of its proper divisors (52037901746).

55308303550 is a wasteful number, since it uses less digits than its factorization.

55308303550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48094212 (or 48094207 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 37.

The spelling of 55308303550 in words is "fifty-five billion, three hundred eight million, three hundred three thousand, five hundred fifty".